Free Programming Tutorials & Source Code

Using the FileStream Namespace to create a text file, then write a string to it.

Namespace required:

using System.IO;

The code:

        protected void Writetofile()
        {
            FileStream fs;
            char[] array;
            try

            {
                fs = new FileStream("test.txt", FileMode.Create); // create a text file in the application directory
                String str = "Welcome to the Scripts Library";
                array = str.ToCharArray ();
                for (int i = 0; i < array.GetLength(0); i++)
                    fs.WriteByte ((byte) char.Parse(array.GetValue(i).ToString()));
                fs.Close();
                MessageBox.Show("File was created!");
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
        }

Run this code, then check you application directory for the test.txt file.
Open the file, what did you find in it?

Happy Coding!